Improvement in stop-valves



UNITED STATES PATENT OEEIGE.

ADOLPH WEBER, OF DETROIT, MICHIGAN, ASSIGNOR OF ONE-HALF EIS RIGHT` TOHENRY W. ROOD, OF SAME PLAGE.

t IMPROVEMENT IN STOP-VALVES.

Specification forming part of Letters Patent No. 216,92] dated June 24,1879; application iiled January 7, 1879.

struction of what are ordinarily denominated stop-valves, and myinvention consists, first, in the peculiar construction of the disksforming the valve, and in the manner of operating the same, whereby theywill be forced apart to close the water-passage, and will be heldtogether in their withdrawal from the water-opening; and, further, inthe combination therewith of a ring connected to one of the disks,resting, when the valve is in the water-way, in anextended portion ofthe shell,

and, when the valve is withdrawn, immediately around the water-passage,so as to allow the water to flow in an uninterrupted stream and toprevent deposit of sediment in the f valve-shell.

As ordinarily constructed, when the diskvalves are withdrawn to allowthe water to pass, usually under pressure, as soon as the water leavesthe confinement of the conducting-pipes and enters one side of theshell, the stream` enlarges, and port-ions thereof strike againsttheinner face ofthe opposite side ofthe shell, causingan interruption ofthe current l and a tendency to deposit within the shell any sedimentwhich it may be carrying. Such deposit after a time fills the shell, sothat the valves are prevented from closing, when the shell must becleaned out, often at a considerable expense of time and labor.

The object of my invention, therefore, is to obviate these diiculties.The invention will be found substantially hereinafter described.

Referring to the drawings, Figure 1 is a side elevation with the casingbroken out. Fig. 2 is a cross-section at x a; in Fig. l. Fig. 3 is asectional plan. Fig. 4 is a section on line y y in Fig. 3. Fig. 5 is ahorizontal central section of Fig. 3. Figs. 6 and 7 are plan views ofthe inner faces of the valves.

In the accompanying drawings, which form a part .of this specification,A represents the Awater-ways a b in the shell.

shelll of a stop-valve, provided with the usual inlet and outlet pipes ab, which communicate with and form the water-way through said shell.This shell is provided with the usual stuflin g -loox B and valve-stemO, which is threaded at the lower end, as shown in Figs. l, 3, and 5.

D Dl represent a pair of disk-valves, the outer face of each of thesevalves being of sufiicient area to entirely close, when in place, theThe valve D is provid ed with a hollow neck, which is interiorlythreaded to engage with the lower threaded end of the valve-stem. Theopposite side or rear face of this valve D is provided with two ribs, c,extending from the foot or inner end of the neck', at an angle of aboutthirty degrees, (more or less,) toward the lower end of Both outer facesof these ribs are said valve. ground or planed to the same plane. Justbelow the termination of these ribs this valve is also provided with aninwardly-projecting segmental iiange, d. The valve D is provided withsimilar ribs, c', finished in like manner, so that when the inclinedfaces of the ribs are in juxtaposition, as shown in Figs. 3, 5, theouter faces of the valves will be parallel with the segmental iiange dof the disk D over hanging the ends ofthe ribs c upon the valve D. Bythis construction, when it is desired to remove the disks and openthe-waterway,

the stem, being turned in the proper direction,-

acts to withdraw thedisk D, and this disk, by its' overhanging iiange,acts upon and withd draws the disk D. A reverse motion of the valve-stemallows the disk D' to drop, and beA ing followed by the disk D, underthe action of the stem, as soon as the disk D is seated, the continuedaction of the stem seats the disk D and forces them laterallyapart,thereby ef fectually closing the water-way.

To the lower end of the disk D is secured the ring E, the interior areaof which corre sponds to the similar area of the water-way, while thewidth of the ring corresponds with the distance between the walls of theshell.

The shell is elongated below the water-way, as shown at F, Figs. 1 and2, to form a casing for the ring E when the valves are closed.

l When the valves are withdrawn and the water-Way opened, the ring isdrawn up from its well into line with the Water-Way through the case,thereby allowing the water as continued and unbroken a' passage throughthe shell as it would have through an ordinary plpe.

This valve may be used for gas, steam, or any liquids. y

What I claim as my invent-ion is 1. The disk-valves D D', havinginclined ribs-c c' andthe curved flanged, the disk D having hollowthreaded neek to engage with the aetuating-serew G, constructed andarranged substa-ntially as described and shown.

screw C, working in the threaded neck of the disk D, constructed andarranged substantially as described and shown.

ADOLPH WEBER.

Witnesses:

H. S. SPRAGUE, CHARLES J. HUN'r.

